The population of Youngstown, Ohio, has been decreasing at an average rate of 2% per year since 2000 when its population was 82,000 . Which of the following best models this situation, where t represents the number of years after 2000? A. P(t)=82,000−0.02t C. P(t)=82,000(0.02)t B. P(t)=82,000−0.98t D. P(t)=82,000(0.98)t